Light responsive self-tanning products and methods for use

摘要

Compositions, methods, and kits for cosmetically producing a tanned appearance in desired areas of skin. The composition includes a self-tanning agent together with intimately admixed naturally-occurring fluorescent materials in a cosmetic carrier. Without prolonged exposure to intense solar or artificial radiation, applying the self-tanning agent imparts a tanned appearance which develops several hours to a day after application. The fluorescent materials absorb at one frequency, and emit at another visible frequency. The admixture of self-tanning agent and fluorescent materials allows application of the self-tanning agent selectively to desired areas of the skin. A light source which emits at the absorbing frequency of the fluorescent materials may be provided together with the compositions in kit form. By illuminating the skin after the composition has been applied and before the self-tanning agent develops its color, any coverage of undesired areas may be easily removed, and any desired areas which were unintentionally untreated may be detected and subject to reapplication.